Transmission bawd eos automobiles



A. S. VOIGHT.

TRANSMISSION BAND FOR AUTOMOBILES.

APPLICATION FILED JUNEZO, I92].

1,417,870, Patented May 30, 1922.

ALGER S. VOIGET,

OF JULIET,

ILLINOIS.

TRANSMISSION BAND FOR AUTOMIOBILES.

Application filed June 20, 1921.

To all whom it may concern:

Be it known that I. Aileen F Velour, a citizen of the United States,residing at .Ioliet. in the county of Will and E tate oi" Illinois. haveinvented certain new and use ful Improvements in Transmission Bands forAutomobiles, of which the following is a specification.

This invention relates to transmission bands of the kind commonly usedin certain types of automobiles in which a split or divided bandencloses a drum forming part of the transmission mechanism. Ordinarilysuch bands comprise a split steel band or ring adapted to closelysurround a drum and which carries at its free ends shoes connected by aspring-carrying rod, operated by a pedal in such manner that when thepedal is depressed the band is tightened on the drum and holds thelatter against rotation. In such mechanism as heretofore constrncted thestrain is not equally distributed and there is a difference in wear atdifferent parts of the band.

According to my invention I provide means whereby these differences inwear are avoided. To do this I provide a supplemental band whichpartially surrounds the ordinary band. and I interpose springs betweenthe two bands which are so located as to exert pressure at difierentparts of the band and thus distribute the strain and wear. One end ofthe inner band is secured to a shoe, of usual construction, while thecompanion shoe is attached to the outer end of the outer or supplementalband, the op posite end of this outer band being detachably connectedwith the inner band. The outer end of the inner band extends into aguide carried by the inner band.

In the accompanying drawings- Figure l is a perspective view of a transmission band embodying my improvements, showing its connection with thepedal arm.

Figure 2 is a side elevation of the band. the lining being omitted. I

Figure 3 is an end view of the band shown in Fig. 2.

The inner band A carries at one end a shoe B of usual construction, andat its 0pposite end it carries a guide 0 for the outer end of the innerband. The outer or supplemental band D partially surrounds the innerband. Its inner end is detachably connected to the inner band at d. Theopposite end of the outer band carries a shoe E which extends into theguide C between Specification of Letters Patent.

Patented May 30, 1922.

Serial No. 478,842.

the sides o thereof. Springs F are interposed between the two bands.These are inot'erably steel leat' springs and are attached to the innerband at and they have curved or arched portions bearing against thoouterband. .'\ny suitable number of springs may be employed and they may belocated at suitable distances apart to distribute the strain. The innerband may be suitably lined. as indicated. at Ii.

The cars 7), c of the shoes B and E are slotted. as shown, to receivethe rod II carrying a spring 71 as usual, and which is secured to onecam member m which coopcrates with another cam member m operated by apedal M.

IVhen the pedal is operated the shoes B and E approach each other, theshoe E sliding in the guide (l and at the same time the outer band isdrawn closer to the inner band compressing the springs I and applyingthe strain equally and yieldingly to the drum. In this way, asexperience has demonstrated, the wear on the band is made uniform andthe strain is cushioned and made more efficient.

While the invention is especially intended ior use as a transmissionband in the manner beforev (itSt'llllOd, it may also be used as a bralrcin an obvious way.

I claim as my invention l. A. transmission band tor automobiles, coin?'ising an inner band carrying at one end a shoe and at the opposite enda guide, an outer hand detachably connected at one end. to the innerband and carrying at its other end a shoe which enters the guide,springs interposed. between the two bands at intervals and tending toseparate the same, and means fo drawing the shoes toward each other andthereby applying pressure through the springs to the inner band.

i. A. transmission band for automobiles, comprising an inner bandextending sub stantially around a drum. and which carries shoe at oneend and a guide at the other end, an outer baud oi slightly less lengthdetarhably connected at one end to the inner band and marrying at itsother end a shoe that tits in said guide, springs interposed between thetwo bands at intervals and carried by the inner band, and means engagingthe shoes for applying pressure to the inner band through said springs.

In testimony whereof, I have hereunto subscribed my name.

ALGER S. VOIGHT.

